EU Nations Try to Steer Auto CO2 Caps

U.K. Letter Is Latest
To Lobby Regulators;
A North-South Split

The United Kingdom has asked European regulators to mold auto-emissions caps in favor of the U.K.-based Jaguar and Land Rover brands, as Europe's governments move to defend their car makers.

In a letter to EU regulators reviewed by The Wall Street Journal, three British government ministers asked that the EU's looming limits on carbon dioxide be shaped in a way that doesn't disproportionately affect niche auto makers, such as Ford...